en Argus As 410

As 410
	Preserved Argus As 410
Type	Piston aircraft engine
Manufacturer	Argus Motoren
First run	1937
Major applications	Arado Ar 96; Focke-Wulf Fw 189
Number built	c.28,700
Developed into	Argus As 411

The Argus As 410 was a German air-cooled inverted V-12 aircraft engine that was first produced by Argus Motoren in 1938.^[1]

Design and development

The engine marked a departure from earlier Argus engines in that it had new construction techniques which gave the engine greater operating speeds and power. The engine featured smaller 105 mm x 115 mm cylinders with deep finned steel cooling slots, aluminum heads, geared supercharger, a steel alloy crankshaft and a magnesium alloy crankcase. The engine weighed approximately 315 kilograms (694 lb) and produced 465 metric horsepower (459 hp) (342 kW) at 3,100 rpm. Approximately 28,700 engines were produced.^[2]

A distinctive feature is the finned spinner ahead of the propeller. This is driven by the airflow as a windmill, and used to power the actuator of the variable-pitch propeller.

The more powerful and refined Argus As 411 was developed from it.

Applications

Specifications (Argus 410A)

Data from Flugzeug-Typenbuch. Handbuch der deutschen Luftfahrt- und Zubehör-Industrie 1944^[3]

General characteristics

Type: 12-cylinder air-cooled inverted V engine
Bore: 105 mm (4.13 in)
Stroke: 115 mm (4.53 in)
Displacement: 11.949 L (729.2 cu in)
Length: 1,585 mm (62.40 in)
Width: 660 mm (25.98 in)
Height: 970 mm (38.19 in)
Dry weight: 315 kg (694 lb) dry, unequipped

336 kg (741 lb) wet, equipped

Components

Valvetrain: single exhaust and inlet overhead valves driven by pushrods and rockers
Supercharger: supercharger driven at 8.73:1, rated to 3,000 m (9,800 ft)
Fuel system: Carburetor
Fuel type: 80 Octane / 87 Octane at 0.25 bar (4 psi)
Oil system: pressure fed at 2.5–10 bar (36–145 psi) with a 5 L (1.3 US gal; 1.1 imp gal) capacity
Cooling system: air

Performance

Power output:

465 PS (459 hp; 342 kW) for takeoff at 3,100 rpm (1 minute) at sea level
355 PS (350 hp; 261 kW) at 2,820 rpm (5 minutes) at sea level
330 PS (325 hp; 243 kW) at 2,820 rpm (30 minutes) at sea level
315 PS (311 hp; 232 kW) at 2,820 rpm (max. continuous / cruise) at sea level

Specific power: 38.75 PS/L (0.63 hp/cu in; 28.50 kW/L)
Compression ratio: 6.4:1
Specific fuel consumption: 0.2 kg/PSh (0.447 lb/(hp⋅h); 0.272 kg/kWh) at max continuous
Oil consumption: 0.007 kg/PSh (0.016 lb/(hp⋅h); 0.010 kg/kWh) at max continuous
Power-to-weight ratio: 1.47 PS/kg (0.66 hp/lb; 1.08 kW/kg)
B.M.E.P.: 8 atm (8.1 bar; 120 psi)
Reduction gear 0.66:1

References

^ Bridgman, Leonard, ed. (1989). Jane's Fighting aircraft of World War II (1995 ed.). New York: Military Press. p. 286. ISBN 0517679647.
^ Gunston, Bill (1989). World Encyclopaedia of Aero Engines (2nd ed.). Cambridge, England: Patrick Stephens Limited. p. 16. ISBN 978-1-85260-163-8.
^ Schneider, Helmut (Dipl.Ing.) (1944). Flugzeug-Typenbuch. Handbuch der deutschen Luftfahrt- und Zubehör-Industrie 1944 (in German) (Facsimile reprint 1986 ed.). Leipzig: Herm. Beyer Verlag. p. 365. ISBN 381120484X.

[JFAoWWII-1] Bridgman, Leonard, ed. (1989). Jane's Fighting aircraft of World War II (1995 ed.). New York: Military Press. p. 286. ISBN 0517679647.

[Gunston-2] Gunston, Bill (1989). World Encyclopaedia of Aero Engines (2nd ed.). Cambridge, England: Patrick Stephens Limited. p. 16. ISBN 978-1-85260-163-8.

[schneider-3] Schneider, Helmut (Dipl.Ing.) (1944). Flugzeug-Typenbuch. Handbuch der deutschen Luftfahrt- und Zubehör-Industrie 1944 (in German) (Facsimile reprint 1986 ed.). Leipzig: Herm. Beyer Verlag. p. 365. ISBN 381120484X.

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Argus As 410